63mm 63-400 Black Phenolic Plastic Smooth Top Cap, Smooth Sides, Solid PE Liner

Ensure a secure, high-performance seal with this 63 mm 63-400 black phenolic plastic cap, designed with a smooth top and smooth sidewalls for a clean, professional look. Known for its durability and chemical resistance, phenolic plastic is an excellent choice for demanding applications where product integrity and reliability are critical.

This cap features a solid polyethylene (PE) liner, providing a dependable moisture barrier and strong seal against leaks and contamination. The liner performs well with a wide range of products, making it suitable for packaging liquids, powders, and chemical solutions that require consistent closure performance during storage and transport.

TCommonly used in laboratory, chemical, pharmaceutical, and industrial applications, this 63-400 cap fits containers with a matching 63-400 neck finish. Its robust construction and secure sealing capabilities make it a trusted option for sensitive or hazardous contents. Cap is sold separately—contact Pipeline Packaging to ensure the best bottle and closure pairing for your specific application.